Metal Complexes of Trifluoropentanedione. An Experiment for the General Chemistry LaboratoryRobert C. Sadoski, David Shipp, and Bill DurhamInvestigation of the transition-metal complexes produced by the reactions of Cr(III), Mn(II), Fe(III), Co(II), Ni(II), and Cu(II) with 1,1,1-trifluoro-2,4-pentanedione; mass spectroscopy is used to determine the stoichiometry of the reaction products. Sadoski, Robert C.; Shipp, David; Durham, Bill. J. Chem. Educ.2001, 78, 665.

Coordination Compounds |

Synthesis |

Mass Spectrometry |

Transition Elements |

Stoichiometry

Chromium Pollution: An Experiment Adapted for Freshman Engineering StudentsPenny SeymourStudents analyze water samples contaminated with Cr(VI) to determine which of several industries appears to be the source of the contamination. The adaptation involves requiring the students to develop the analytic procedure themselves, rather than working from a prepared set of instructions, and then to report the results as a letter plus appendices, including general recommendations for remedial action, directed to the client who contracted the investigation. Seymour, Penny. J. Chem. Educ.1999, 76, 927.

Metals |

Applications of Chemistry

Testing the Waters for ChromiumHerrmann, Mary S.A test for the presence of Cr(IV) in water using a sensitive colorimetric reagent.Herrmann, Mary S. J. Chem. Educ.1994, 71, 323.